Evidence map›Paper›PMID 22176657›Full record

ReviewCritical reviews in biochemistry and molecular biology

Defects in mitochondrial DNA replication and human disease.

William C Copeland

Registry-linked trialOpen access · greenAbstract readReview
In one paragraph

Review in Critical reviews in biochemistry and molecular biology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04802707 (A Phase II, Monocenter, Single Arm Study To Assess The Safety and Efficacy Of Combination Deoxycytidine and Deoxythymidine For Mitochondrial Depletion Disorders), which is not on this map. Cited by 91 papers.

0numbers the graph read from it
0cells of the map it votes in
91citing papers in PubMed
8.3field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT04802707 phase2recruitingnot on this map

A Phase II, Monocenter, Single Arm Study To Assess The Safety and Efficacy Of Combination Deoxycytidine and Deoxythymidine For Mitochondrial Depletion Disorders

TypeinterventionalSponsorKenneth Myers, MDRan2021 to 2029Enrolled200ConditionsMitochondrial Diseases, Mitochondrial Encephalomyopathy, Mitochondrial Encephalopathy, Mitochondrial DNA DepletionArmsdeoxycytidine and deoxythymidine
3 · Its place in the literature

Who cites it

91 citing papers in PubMed, 163 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Review
  5. Review
  6. Review
  7. TIMELESS as a prognostic biomarker and therapeutic target in gastric cancer.Journal, genetic engineering & biotechnology · 2025
    Article
  8. Article
  9. Review
  10. Two novelFrontiers in neurology · 2024
    Article
  11. Article
  12. Review
  13. Article
  14. Rolling Circle Replication and Bypass of Damaged Nucleotides.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  15. Mitochondrial Control in Inflammatory Gastrointestinal Diseases.International journal of molecular sciences · 2022
    Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. Control by CaCell calcium · 2020
    Review

31 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

1 author at 1 institution in 1 country.

William C CopelandLaboratory of Molecular Genetics, National Institute of Environmental Health Sciences, Durham, North Carolina 27709, USA. copelan1@niehs.nih.gov
National Institute of Environmental Health Sciences · US

Funding

Molecular Characterization Of The Mitochondrial Dna PolymeraseZIAES065078 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI COPELAND, WILLIAM · 2009 to 2025
$25.4M
Human Mitochondrial Dna Polymerase With Anti-hiv NucleotidesZIAES065080 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI COPELAND, WILLIAM · 2009 to 2025
$9.6M
Molecular Study Of The Mitochondrial DNA PolymeraseZ01ES065078 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI COPELAND, WILLIAM · 1994 to 2008
$2.8M
Mitochondrial DNA Polymerase With Anti-HIV NucleotidesZ01ES065080 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI COPELAND, WILLIAM · 1995 to 2008
$763k
Intramural NIH HHS Z01 ES065078Intramural NIH HHS Z01 ES065080Intramural NIH HHS ZIA ES065078Intramural NIH HHS ZIA ES065080
6 · The paper itself

Abstract

Mitochondrial DNA (mtDNA) is replicated by the DNA polymerase g in concert with accessory proteins such as the mtDNA helicase, single stranded DNA binding protein, topoisomerase, and initiating factors. Nucleotide precursors for mtDNA replication arise from the mitochondrial salvage pathway originating from transport of nucleosides, or alternatively from cytoplasmic reduction of ribonucleotides. Defects in mtDNA replication or nucleotide metabolism can cause mitochondrial genetic diseases due to mtDNA deletions, point mutations, or depletion which ultimately cause loss of oxidative phosphorylation. These genetic diseases include mtDNA depletion syndromes such as Alpers or early infantile hepatocerebral syndromes, and mtDNA deletion disorders, such as progressive external ophthalmoplegia (PEO), ataxia-neuropathy, or mitochondrial neurogastrointestinal encephalomyopathy (MNGIE). This review focuses on our current knowledge of genetic defects of mtDNA replication (POLG, POLG2, C10orf2) and nucleotide metabolism (TYMP, TK2, DGOUK, and RRM2B) that cause instability of mtDNA and mitochondrial disease.

Indexed as

AnimalsCell Cycle ProteinsDiffuse Cerebral Sclerosis of SchilderDNA-Directed DNA PolymeraseDNA HelicasesDNA, MitochondrialDNA Polymerase gammaDNA ReplicationHumansMiceMitochondriaMitochondrial DiseasesMitochondrial ProteinsMutationNeurodegenerative DiseasesNucleotidesCell Cycle Proteinsdeoxyguanosine kinaseDNA-Directed DNA PolymeraseDNA HelicasesDNA, MitochondrialDNA Polymerase gammaMitochondrial ProteinsNucleotidesPhosphotransferases (Alcohol Group Acceptor)POLG2 protein, humanPOLG protein, humanRibonucleotide ReductasesRRM2B protein, humanThymidine Kinasethymidine kinase 2Thymidine PhosphorylaseTWNK protein, humanTYMP protein, human

Identifiers

PMID22176657
PMCPMC3244805
OpenAlexW1991422698

What OpenQuestion holds

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.